Pipelined field programmable gate array for DOA estimation
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United States of America Patent
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May 30, 2023
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N/A
app pub date -
Oct 26, 2022
filing date -
May 31, 2022
priority date (Note) -
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Abstract
A communications device includes a uniform linear array of M antennas and a field programmable gate array (FPGA) having pipelined stages in which execution of overlapping instructions estimate a direction of arrival of RF signals from multiple sources. A preprocessing stage of the FPGA includes at least one configurable logic block configured to apply forward/backward averaging spatial smoothing to a signal space matrix extracted from a covariance matrix in the preprocessing stage. The FPGA further includes at least one configurable logic block configured to compute the direction of arrival angle for the RF signals using a least squares method.
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